Dough-raiser.



CDLIH F. HARDY, OF HARVARD, NEBRE.

DOUGH-RAISER.

specification of Letters latent.

Application filed March 20, 1916. Serial Lilo. 85332.

To all whom it may concern:

Be it known that 1, Colin F. HARDY, a citizen of the United States,residing at Harvard, in the county of Clay and State of Nebraska, haveinvented certain new and useful ln'i 'n'oveinents in Dough-Raisers, of

which the following is 'a specification, reference being had to theaccompanying drawings.

This invention relates to certain improvements in dough raisers and itis an object of the invention to provide a device of this generalcharacter having novel and improved means whereby a heat insulatingcompartment is afforded which serves to re tain for a prolonged period amoderate temperature within the device in order to facilitate theraising of the dough.

It is also an object of the invehtion to providea device of this generalcharacter wherein a heat may be generated within the device and wherebythe temperature within the device may be readily ascertained.

The invention consists .in the details of construction and in thecombination and arrangement of the several parts of my improved raiserwhereby certain important advantages are attained and the device isrendered simpler, less expensive and otherwise more convenient andadvantageous for use. all as will be hereinafter more fully set forth,

The novel features of the invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein Figure 1 is a vertical sectional view taken through adough raiser constructed in accordance with an embodiment of myinvention a portion of the electric heater being shown in section; and

Fig. 2 is a view in bottom plan of the cover as herein included.

As disclosed in the accompanying drawings, A comprises the base of myimproved device which consists of a layer 1 of cardboard ofpredetermined dimensions and havof the layers 2 of corrugated board,where by a plurality of air cells are afforded, and as herein disclosed,the layers 2 are circular in form and adapted to be snugly fitted Withinthe body portion B of my improved device as herein disclosed, said bodyportion ing imposed upon the central portion there- B being cylindricalin form and having the marginal portions of the layer 1 of cardboardovcrlying the lower wall thereof and suitably secured thereto wherebythe base A. and the body portion B are permanently secured one to theother.

The body B also comprises a plurality of layers 3 of corrugated boardwherebv air cells are afforded, and the inner wall (if the body portionI5 and the base A are provided with a lining l of asbestos and the outerfaces thereof are covered with a layer 5 of strong paper fiber orcanvas.

The removable top C is formed in a H1311" ner substantially identical tothe base A except that the under faces thereof are provided with acovering- G of felt or other compressible material so that an air-tightclosure assured when the top C is in applied position. I also find it ofadvantage to provide the top Q with a metallic plate 7 preferably of tinso that the handle member 8 may be effectively anchored in appliedposition. i

The device as hereinbefore described re sults in a cabinet adapted to beof such dimensionsas to have positioned therein a pan containing doughor the like, and it will-be perceived that should the dough be made of Owarm water and warm flour the temperature ofthe dough or sponge will bemaintained for a prolonged period of time after the top Q has beenapplied. It will be par ticularly noted that by having the base A,

In the event that the dough or sponge is mixed from cold materials, a.suitable heating medium may be initially applied within the cabinet suchas the container 9 of predetermined height and adapted to fit snuglyWithin the cabinet and upon which the dough containing pan P is adaptedto be rested, said container being adapted to contain warm water orother liquid. It will be perceived however that in lieu of the container9, a heated soap-stone may be employed, as is well known.

However, for positively heating the interiorlof tliie cabinet I preferto employ the electric heating element E carried by the under face ofthe top and as herein dis-- Mid drawings.

The heating coil afforded by the wire l0 is covered with the asbestossheets 1d and between the metallic plates 15, and said element E is heldin operative position upon the under face of the top (1' through themedium'of the straps 16, hich are disposed transversely of the heatingelement 1) adjacent the opposite ends thereof and across the inner andouter laces of the heatin element, Headed bolts 17 are disposed throughthe closure member (I and through the extremities of the straps 16 andhave in threaded engagement with the lower or inner ends thereof thenuts 18 which serve to clamp the heating element I l between the strapsl6 and to hold the heating element in applied position upon the closuremember C. it is also to be noted that the heads of the bolts 17 overliethe outer face of the closure member C.

I' also find it of advantage to provide the top C with a thermometer Tsaid thermometer being disposed through the top and having its bulbpositioned therebelow, so that the same will be arranged withintlnereot' and for this reason I do not wish to be understood aslin'riting mysell to the precise arrangement and formation of the seve.1 parts herein shown in carrying out my invention in practice.

I claim:

It dough raiser comprising a cabinet havan claiming: a remo able closuremember for said opening and extending within the cabinet when in appliedposition, the portion of the nsure ll'lolwbct adapted to extend within tcabinet consistine' of a plurality of laminations, an electric heaterunderlying the inner time of the closure member plates overlying theheater, and removable bolts disposed through the laminations of theclosure member and the plates whereby said heater is held in appliedposition and the ialninations held against separation.

In testimony whereof I hereunto ailix my signature in the presence oftwo witnesses.

COLIN l HARDY.

Witnesses Emma T. Jrrrmns, Ror Dr: Groin".

